Duty to intervene: Floyd cops spoke up but didn't step in

Minneapolis was among several cities that had policies on the books requiring police officers to intervene to stop colleagues from using unreasonable force, but that didn't save George Floyd and law enforcement experts say such rules will always run up against entrenched police culture and the fear of being ostracized and branded a “rat.”Power dynamics may have been magnified in the Floyd case because two of the four officers involved were rookies and the most senior officer on the s